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Virtualization

ID	Contact Title	Contact Name	Country	Rating


1	Marketing Assistant	Patricio Simpson	Germany	1 2 3 4 5
2	Marketing Manager	Antonio Moreno	Italy	1 2 3 4 5
3	Sales Associate	Matti Karttunen	Bulgaria	1 2 3 4 5
4	Sales Consultant	Jaime Yorres	Bulgaria	1 2 3 4 5
5	Accounting Manager	Howard Snyder	Argentina	1 2 3 4 5
6	Sales Representative	Georg Pipps	USA	1 2 3 4 5
7	Sales Associate	Hanna Moos	Spain	1 2 3 4 5
8	Owner	Hanna Moos	France	1 2 3 4 5
9	Marketing Manager	Matti Karttunen	England	1 2 3 4 5
10	Accountant	Antonio Moreno	Austria	1 2 3 4 5
11	Sales Representative	Patricio Simpson	Bulgaria	1 2 3 4 5
12	Sales Consultant	Hanna Moos	Brazil	1 2 3 4 5
13	Marketing Assistant	Georg Pipps	Germany	1 2 3 4 5
14	Accounting Manager	Jaime Yorres	Argentina	1 2 3 4 5
15	Accounting Manager	Paul Henriot	Bulgaria	1 2 3 4 5
16	Accounting Manager	Elizabeth Lincoln	Brazil	1 2 3 4 5
17	Sales Agent	Howard Snyder	England	1 2 3 4 5
18	Accounting Manager	Elizabeth Lincoln	France	1 2 3 4 5
19	Sales Associate	Hanna Moos	England	1 2 3 4 5
20	Accounting Manager	Antonio Moreno	Spain	1 2 3 4 5
21	Sales Agent	Matti Karttunen	Argentina	1 2 3 4 5
22	Accounting Manager	Pascale Cartrain	USA	1 2 3 4 5
23	Accounting Manager	Georg Pipps	England	1 2 3 4 5
24	Accounting Manager	Antonio Moreno	Brazil	1 2 3 4 5
25	Sales Agent	Paul Henriot	Austria	1 2 3 4 5
26	Accounting Manager	Howard Snyder	USA	1 2 3 4 5
27	Sales Representative	Paul Henriot	Austria	1 2 3 4 5
28	Owner	Matti Karttunen	Spain	1 2 3 4 5
29	Sales Representative	Jaime Yorres	Austria	1 2 3 4 5
30	Sales Agent	Howard Snyder	Spain	1 2 3 4 5
31	Owner	Elizabeth Lincoln	Brazil	1 2 3 4 5
32	Accounting Manager	Hanna Moos	Bulgaria	1 2 3 4 5
33	Owner	Matti Karttunen	England	1 2 3 4 5
34	Owner	Pascale Cartrain	France	1 2 3 4 5
35	Accounting Manager	Patricio Simpson	USA	1 2 3 4 5
36	Sales Representative	Jaime Yorres	Brazil	1 2 3 4 5
37	Marketing Assistant	Antonio Moreno	Brazil	1 2 3 4 5
38	Marketing Assistant	Patricio Simpson	Germany	1 2 3 4 5
39	Sales Manager	Antonio Moreno	Austria	1 2 3 4 5
40	Accountant	Howard Snyder	England	1 2 3 4 5
41	Accounting Manager	Elizabeth Lincoln	Bulgaria	1 2 3 4 5
42	Sales Agent	Elizabeth Lincoln	Italy	1 2 3 4 5
43	Accountant	Hanna Moos	Brazil	1 2 3 4 5
44	Sales Associate	Elizabeth Lincoln	Austria	1 2 3 4 5
45	Accounting Manager	Paul Henriot	Germany	1 2 3 4 5
46	Owner	Jaime Yorres	Austria	1 2 3 4 5
47	Sales Associate	Pascale Cartrain	France	1 2 3 4 5
48	Sales Manager	Howard Snyder	England	1 2 3 4 5
49	Sales Consultant	Georg Pipps	Italy	1 2 3 4 5
50	Accountant	Jaime Yorres	France	1 2 3 4 5
51	Sales Consultant	Pascale Cartrain	Spain	1 2 3 4 5
52	Sales Associate	Paul Henriot	Argentina	1 2 3 4 5
53	Marketing Assistant	Paul Henriot	Bulgaria	1 2 3 4 5
54	Sales Associate	Antonio Moreno	Austria	1 2 3 4 5
55	Accountant	Pascale Cartrain	Italy	1 2 3 4 5
56	Accountant	Elizabeth Lincoln	USA	1 2 3 4 5
57	Sales Associate	Elizabeth Lincoln	USA	1 2 3 4 5
58	Marketing Assistant	Howard Snyder	Brazil	1 2 3 4 5
59	Accounting Manager	Elizabeth Lincoln	Austria	1 2 3 4 5
60	Accountant	Hanna Moos	Germany	1 2 3 4 5
61	Sales Consultant	Georg Pipps	Argentina	1 2 3 4 5
62	Accounting Manager	Paul Henriot	Brazil	1 2 3 4 5
63	Marketing Assistant	Patricio Simpson	England	1 2 3 4 5
64	Sales Associate	Howard Snyder	Brazil	1 2 3 4 5
65	Sales Associate	Matti Karttunen	Argentina	1 2 3 4 5
66	Accounting Manager	Elizabeth Lincoln	England	1 2 3 4 5
67	Sales Associate	Howard Snyder	Germany	1 2 3 4 5
68	Sales Associate	Patricio Simpson	Austria	1 2 3 4 5
69	Marketing Manager	Jaime Yorres	Italy	1 2 3 4 5
70	Sales Associate	Matti Karttunen	France	1 2 3 4 5
71	Sales Associate	Elizabeth Lincoln	Austria	1 2 3 4 5
72	Accountant	Pascale Cartrain	Bulgaria	1 2 3 4 5
73	Sales Associate	Howard Snyder	Argentina	1 2 3 4 5
74	Sales Associate	Paul Henriot	USA	1 2 3 4 5
75	Accountant	Elizabeth Lincoln	Brazil	1 2 3 4 5
76	Marketing Manager	Georg Pipps	Austria	1 2 3 4 5
77	Owner	Hanna Moos	Italy	1 2 3 4 5
78	Sales Agent	Matti Karttunen	USA	1 2 3 4 5
79	Sales Associate	Georg Pipps	USA	1 2 3 4 5
80	Sales Consultant	Pascale Cartrain	Germany	1 2 3 4 5
81	Sales Manager	Paul Henriot	Spain	1 2 3 4 5
82	Owner	Patricio Simpson	Austria	1 2 3 4 5
83	Accounting Manager	Antonio Moreno	Argentina	1 2 3 4 5
84	Marketing Assistant	Paul Henriot	Italy	1 2 3 4 5
85	Accounting Manager	Jaime Yorres	Bulgaria	1 2 3 4 5
86	Sales Agent	Paul Henriot	Spain	1 2 3 4 5
87	Sales Manager	Antonio Moreno	Brazil	1 2 3 4 5
88	Sales Manager	Georg Pipps	Brazil	1 2 3 4 5
89	Marketing Manager	Pascale Cartrain	England	1 2 3 4 5
90	Sales Manager	Pascale Cartrain	France	1 2 3 4 5
91	Sales Consultant	Elizabeth Lincoln	Italy	1 2 3 4 5
92	Accountant	Howard Snyder	Italy	1 2 3 4 5
93	Owner	Paul Henriot	Brazil	1 2 3 4 5
94	Sales Consultant	Elizabeth Lincoln	France	1 2 3 4 5
95	Sales Associate	Howard Snyder	Italy	1 2 3 4 5
96	Sales Agent	Pascale Cartrain	Austria	1 2 3 4 5
97	Sales Consultant	Georg Pipps	France	1 2 3 4 5
98	Accounting Manager	Antonio Moreno	England	1 2 3 4 5
99	Sales Agent	Paul Henriot	Germany	1 2 3 4 5
100	Sales Consultant	Hanna Moos	Italy	1 2 3 4 5


...261 262 263 264 265 266 267 268 269 270 ... Item 262001 to 263000 of 300000 Page: of 300 GoPage size:

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Columns
- ID
- Contact Title
- Contact Name
- Country
- Rating

About this demo
C#
VB
Download demo code files
Isolate this demo as a stand-alone application

RadGrid's virtualization feature allows you to handle hundreds of thousands of rows without negatively impacting the user experience. The control achieves this thanks to its ItemsPerView property allowing you to control the number of items loaded at a time. Users can now scroll, as well as show, hide, resize and reorder columns without any waiting time.

This demo shows how quickly Telerik's ASP.NET DataGrid can handle user interactions with 300,000 items. You can configure the component to allow scrolling through the entire data set or only through the current page by using EnableCurrentPageScrollOnly property,.

<%@ Page Language="c#" CodeFile="DefaultCS.aspx.cs" Inherits="Telerik.GridExamplesCSharp.Performance.Virtualization.DefaultCS" %>

<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
<%@ Register TagPrefix="qsf" Namespace="Telerik.QuickStart" %>
<!DOCTYPE html>
<html xmlns='http://www.w3.org/1999/xhtml'>
<head runat="server">
    <title>Telerik ASP.NET Example</title>
    <link href="styles.css" rel="stylesheet" />
</head>
<body>
    <form id="form1" runat="server">
    <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
    <telerik:RadSkinManager ID="RadSkinManager1" runat="server" ShowChooser="true" />
    <telerik:RadAjaxLoadingPanel runat="server" ID="RadAjaxLoadingPanel1"></telerik:RadAjaxLoadingPanel>
    <telerik:RadAjaxPanel runat="server" ID="RadAjaxPanel" LoadingPanelID="RadAjaxLoadingPanel1" CssClass="demo-container">
        <telerik:RadGrid RenderMode="Lightweight" ID="RadGrid1" runat="server"  AutoGenerateColumns="false"
            AllowSorting="true" GroupingEnabled="false"
            EnableHeaderContextMenu="true" AllowPaging="true" PageSize="1000" OnNeedDataSource="RadGrid1_NeedDataSource">
            <MasterTableView TableLayout="Fixed">
                <Columns>
                    <telerik:GridBoundColumn UniqueName="ID" HeaderText="ID" HeaderStyle-Width="50px" DataField="ID"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactTitle" HeaderText="Contact Title" HeaderStyle-Width="150px" DataField="ContactTitle"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactName" HeaderText="Contact Name" HeaderStyle-Width="150" DataField="ContactName"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="Country" HeaderText="Country" HeaderStyle-Width="100px" DataField="Country"></telerik:GridBoundColumn>
                    <telerik:GridRatingColumn UniqueName="Rating" HeaderText="Rating" HeaderStyle-Width="100px" DataField="Rating"></telerik:GridRatingColumn>
                </Columns>
            </MasterTableView>
            <ClientSettings ReorderColumnsOnClient="true" AllowColumnsReorder="true" ColumnsReorderMethod="Reorder">
                <Virtualization EnableVirtualization="true" InitiallyCachedItemsCount="2000"
                    LoadingPanelID="RadAjaxLoadingPanel1" ItemsPerView="100"/>
                <Scrolling AllowScroll="true" UseStaticHeaders="true" ScrollHeight="500px" />
                <Resizing AllowColumnResize="true" />
            </ClientSettings>
            <PagerStyle Mode="NextPrevNumericAndAdvanced"></PagerStyle>
        </telerik:RadGrid>
    </telerik:RadAjaxPanel>
    </form>
</body>
</html>

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